There are different methods in revit for creating roofs.
Revit 2017 manually draw roof.
Create a roof by footprint creates a roof using the building footprint to define its boundaries.
Finish the sketch by pressing the green tick and you will not have a completely flat roof surface in your revit model.
In a plan view add a reference plane.
Using shape editing tools.
Create a roof by extrusion creates a roof by extruding a profile that you sketch.
The easiest one is the footprint roof.
A footprint roof is ideal for generating floors.
Revit 2017 roofs by footprint and joining complicated roofs.
For creating complex roof it might be easier if you create separate roof then use join roof tool to join them later.
Converts a face into a roof curtain wall system wall or floor.
Then draw the arrow to define the slope direction.
Create a sketch of the desired shape s.
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Just select sketchup mode and draw the shape of the roof.
Create levels to control the height of the shapes.
Architecture tab work plane panel ref plane structure tab work plane panel ref plane systems tab work plane panel ref plane in the drawing area sketch a reference plane that is not perpendicular to the roof ridges.
Download manufacturer approved bim content for roofs.
Discover free revit bim objects for roofs.
When creating a conceptual mass to be used in a project follow these steps.
The extrusion of a roof can extend in either a positive or a negative direction along the plane perpendicular to the face of a solid component such as a wall.
You can use height or slope value specify the method and the constraint values from properties palette.
Is there anyway to define manually a room area.
To align roof ridges in an elevation view use the align tool.
Flat roof in revit this one is very straightforward.
Once it is completed it produces the 3d form easily finished with any slope that is allowed by you.